My iPhone 4 just started acting up after I opened it up to install a light mod kit. I am using it to create this post it works perfectly fine. My phone will now only boot in safe mode ( doesn't say it's in safe mode) and won't boot in jailbroken mode. I tried holding the home and power button for ten seconds still wouldn't boot up. Tried re jailbreaking, and booting tethered. I also reinstalled the evasion untethered jailbreak on Cydia. Still wouldn't boot up. Any suggestions??